MADAWASKA — Business entrepreneurs in Northern Aroostook may participate in a free business seminar titled “Promotion: Solving the Puzzle” from 6:30 to 9 p.m. Wednesday, Sept. 16, at the Gateway Motel on Main Street.

The seminar will address all aspects of marketing and promotion in business, including trade shows, direct mail, and radio, television and print advertising. Questions on promotion will be addressed. The seminar is presented in cooperation with the Small Business Development Center, the Northern Maine Development Commission and Madawaska Chamber of Commerce. Individuals may register by contacting the Chamber of Commerce or NMDC in Caribou.